.bigimg{
    width: 100%;
    height: 695px;
    background-image: url(../码小易images/schools-banner.png);
    background-position: center;
    background-repeat: no-repeat;
    padding-bottom: 100px;
}
.distribution{
    width: 100%;
    min-width: 1200px;
    max-width: 1720px;
    padding:20px 0;
}
.distribution-heart{
    width: 90%;
    min-width: 1200px;
    max-width: 1720px;
    margin: 0 auto;
    overflow: hidden;
}
.distribution-heart h1{
     text-align: center;
     font-weight: bold;
     font-size: 40px;
     margin-bottom: 100px;
}
.introduce-left img{
    border-radius: 10px;
}
.introduce{
    display: flex;
}
.introduce-right{
    background-color:#ffb300;
    padding: 50px;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    border-radius: 10px;
    gap: 20px;
}
.introduce-right h3{
    position: relative;
    width: max-content;
    margin: 0 auto;
    background-color: #eee;
    font-size: 30px;
    font-weight: bold;
    color:#ffb300;
    padding: 5px 30px;
    margin-bottom: 5px;
}
.introduce-right h3::before{
    content: '';
    position: absolute;
    border-right: 59px solid #eee;
    border-top: 32px solid transparent;
    border-bottom: 32px solid transparent;
    left: -59px;
    top: 0px;
}
.introduce-right h3::after{
    content: '';
    position: absolute;
    border-left: 59px solid #eee;
    border-top: 32px solid transparent;
    border-bottom: 32px solid transparent;
    right: -59px;
    top: 0px;
}
.introduce-right {
    font-size: 18px;
    color: #eee;
}
.distribution:nth-child(2n){
    background-color: #fff;
}
.distribution:nth-child(2n+1){
    background-color: #eee;
}
.distribution:nth-child(2n) .introduce-right{
     order: -1;
}
.distribution:nth-child(3n+1) .introduce-right{
    background-color: #ff9900
}
.distribution:nth-child(3n+1) .introduce-right h3{
         color: #ff9900
}
.distribution:nth-child(3n+2) .introduce-right{
    background-color: #ff5e00
}
.distribution:nth-child(3n+2) .introduce-right h3{
    color: #ff5e00
}
.none{
    width: 100%;
    height: 150px;
}